Board Thread:Pokémon Help/@comment-31398341-20171026040947/@comment-27535813-20180123063321

Allofyou wrote:

While Hoopa-Unbound is not an S tier Pokemon, I see it at A+ due to its spammability and the fact that it has no counters. Nothing can risk switching to it, even the best walls or some Pokemon that resists its STABs like Mega Mawile since most, if not all, of them can be OHKOed or 2HKOed by Life Orb set. It absolutely destroys stall, including Chansey due to Psyshock + Nasty Plot. Also, fun fact : it actually beats Ash-Greninja and Tyranitar, even AV set which is hardly used.

252 SpA Life Orb Hoopa-Unbound Focus Blast vs. 248 HP / 252+ SpD Assault Vest Tyranitar: 400-473 (99.2 - 117.3%) -- 93.8% chance to OHKO

252 SpA Life Orb Greninja Hydro Pump vs. 0 HP / 0 SpD Hoopa-Unbound: 160-188 (53.1 - 62.4%) -- guaranteed 2HKO

252 SpA Life Orb Hoopa-Unbound Focus Blast vs. 0 HP / 0- SpD Greninja: 614-723 (215.4 - 253.6%) -- guaranteed OHKO

Since Hoopa-Unbound is here, Hydreigon is prepared for a huge drop since its real niche now are only defensive typing, Levitate and ability to pivot using U-Turn. However, it is power-creeped by Hoopa-U by a huge margin. Even though its speed is higher, Ash-Greninja does it better in this department as a Dark type special attacker (which I forgot to rank up). Yes the problem is that it has a relatively slow speed tier so just like how things can't switch into it easily, the same goes for the other way around. It can't risk switching into Greninja, then take a hit the next turn after switching in and fire off a Focus Blast. By your calculation, it would be dead. So it still has issues with revenge killing and speed creep. I'd agree that definitely, it's one of the best wallbreakers out there since after a +2 boost from Nasty Plot or even without a boost it's going to muscle its way through and easily break apart cores. Also you forgot to put Sandstorm up for Tyranitar as it gets a sp.defense boost from it:

252 SpA Life Orb Hoopa-Unbound Focus Blast vs. 248 HP / 252+ SpD Assault Vest Tyranitar in Sand: 265-317 (65.7 - 78.6%) -- guaranteed 2HKO

Naturally speaking, while its true that it doesn't run any super-effective attack to hit Hoopa-Unbound, Hoopa-Unbound already has atrocious physical defense so it's not going to last long from that either. Chip Damage will pretty much pressure Hoopa-Unbound when switching around, especially how it is unable to outspeed things that can easily kill it.